Cronulla-Sutherland Sharks Logo

The club wasn’t known as the Sharks' until after its initial admission into the competition. During Cronulla’s first season the crest featured a drawing of [Captain Cook]'s ship the [HMS Bark Endeavour]. It is alleged that during the first season the club President suggested the 'Lions' while the captain [Ken Kearney] recommended the 'Sharks'. The mascot may have been named after the Cronulla Surf Club's rugby league teams of the 1970s.

From the late 1970s through to the late 1990s, the Sharks used a predominantly black circular crest with a blue shark. This was changed after Super League in 1997 to a blue and white star-shaped design. Between 1999–2002, the name was shortened to simply the "Sharks"[citation needed]. Since 2003, the name has since been changed back to the Cronulla-Sutherland Sharks and changed their logo again in 2004, which is currently in use.